Perhaps - instead of just changing words one at a time - people could be allowed to add phrases/clauses? By adding the construction, they would have <noun>, <verb>, etc... the next people would need to fill in any missing words on their turns before changing existing ones or adding new words. For instance, I could have written

This actually makes a bit of sense. Basically, I'm claiming that I have colorless microscopic badgers, and they're "empirical fugitives" in that it's impossible to find any evidence of their existence.

And remember, my friends, future events such as these will affect you in the future.